Caps up to 4 cm. Pellicle peels off in large segments. In one specimen, there was some red staining on the gills. No odor, no taste.

Spores 8-9 × 6-6.5 microns. Cheilocystia with thin “fingers”.

Maas Geesteranus equates M. rugulosiceps with M. galericulata. From Smith: “The lack of farinaceous taste and the presence of sordid-reddish stains on the gills appear to distinguish the species from M. galericulata. The two are very closely related, however, and may not be distinct.”